My 15-year-old son had been hanging around with older kids and started using serious drugs. Since we went into family counselling, he’s no longer using drugs, but he's still doing things I don't feel comfortable with – occasionally drinking and partying late. He says that we should now trust him. We have said that he can drink as long as it’s very limited and he tells us. We feel we are doing harm reduction, a compromise we can live with. But I worry about him constantly. At the same time, I was a rebel too and when my parents pushed me too hard I ran away. What should I do?